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SHould You TransFer the Tubercle?

Medial Patellofemoral Ligament Reconstruction | Patellofemoral Dislocation | Tibial Tubercle Osteotomy

The aim of this study is to investigate the role of tibial tubercle osteotomy (TTO) on the subjective and objective outcomes following medial patellofemoral ligament reconstruction (MPFL-R) in patients with an increased tibial tubercle-trochlear groove (TT-TG) distance with or without patella alta.

This Pilot RCT will assess the feasibility of conducting this study for:

1. The ability to recruit study patients
2. Adherence to the study protocol
3. Completion rates of patient follow-up at a minimum of 12 months post-operative

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Participation Requirements

  • Sex:

    ALL

  • Eligible Ages:

    13 to 30

Participation Criteria

Inclusion Criteria:

* Age 13-30 years
* Symptomatic recurrent lateral patellofemoral instability
* TT-TG ≥15mm measured on MRI or ≥18mm on CT scan
* Closed physes (confirmed on knee x-rays)

Exclusion Criteria:

* Caton-Deschamps ratio ≥ 1.4 on lateral radiographs
* Femoral anteversion ≥ 25 degrees on diagnostic imaging rotational profile
* Tibial external rotation ≥ 45 degrees on diagnostic imaging rotational profile
* High-grade trochlear dysplasia requiring trochleoplasty
* Significant osteoarthritis on skyline plain imaging (Kellgren Lawrence grade ≥ 2)
* A chondral lesion of the patellofemoral joint that is undergoing a cartilage restoration procedure.
* Unable to complete computer-based outcome questionnaires
* Pregnant (at time of surgery)

Study Location

Banff Sport Medicine
Banff Sport Medicine
Canmore, Alberta
Canada

Contact Study Team

Primary Contact

Laurie Hiemstra, MD PhD FRCSC

4037602897
Study Sponsored By
Banff Sport Medicine Foundation
Participants Required
More Information
Study ID: NCT05759039